import router from './router'
import store from './store'
import {
  Message
} from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import {
  getToken
} from '@/utils/auth' // get token from cookie
import getPageTitle from '@/utils/get-page-title'
import Layout from '@/layout'

NProgress.configure({
  showSpinner: false
}) // NProgress Configuration

const whiteList = ['/login'] // no redirect whitelist

router.beforeEach(async (to, from, next) => {
  // start progress bar
  NProgress.start()

  // set page title
  document.title = getPageTitle(to.meta.title)

  // determine whether the user has logged in
  const hasToken = getToken()


  if (hasToken) {
    if (to.path === '/login') {
      // if is logged in, redirect to the home page
      next({
        path: '/'
      })
      NProgress.done()
    } else {
      // determine whether the user has obtained his permission roles through getInfo
      const hasRoles = store.getters.roles && store.getters.roles.length > 0
      if (hasRoles) {
        next()
      } else {

        try {


          // get user info
          // note: roles must be a object array! such as: ['admin'] or ,['developer','editor']
          let {
            roles
          } = await store.dispatch('user/getInfo')



          // generate accessible routes map based on roles
          const accessRoutes = await store.dispatch('permission/generateRoutes')
          //  await store.dispatch('user/getUserMenus')
          // const accessRoutes = await store.dispatch('permission/generateRoutesMock')

         // let c=JSON.parse(JSON.stringify(accessRoutes));
         
          console.log('before',  accessRoutes)
          // dynamically add accessible routes

          let aa = [{
              path: '/',
              component: () => import("@/layout/index"),
              menuId: '1',
              redirect: '/dashboard',
              url: '@/layout/index',
              children: [{
                menuId: '2',
                path: 'dashboard',
                name: 'Dashboard',
                url: '@/views/dashboard/index',
                component: () => import('@/views/dashboard/index'),
                meta: {
                  title: 'Dashboard',
                  icon: 'dashboard'
                }
              }]
            },
            {
              path: '/form',
              menuId: '6',
              url: '@/layout/index',
              component: () => import("@/layout/index"),
              children: [{
                path: 'index',
                name: 'Form',
                menuId: '7',
                url: '@/views/form/index',
                component: () => import('@/views/form/index'),
                meta: {
                  title: 'Form',
                  icon: 'form'
                }
              }]
            }
          ]


          let b = [{
            "url": "@/layout/index",
            "path": "/",
            "redirect": "/dashboard",
            "menuId": 1,
            "children": [{
              "url": "@/views/dashboard/index",
              "path": "dashboard",
              "name": "Dashboard",
              "meta": {
                "title": "Dashboard",
                "icon": "dashboard"
              },
              "menuId": 2
            }]
          }, {
            "url": "@/layout/index",
            "path": "/form",
            "menuId": 6,
            "children": [{
              "url": "@/views/form/index",
              "path": "index",
              "name": "Form",
              "meta": {
                "title": "Form",
                "icon": "form"
              },
              "menuId": 7
            }]
          }];


          b[0].component = Layout;
          b[0].children[0].component= () => import('@/views/dashboard/index')
          b[1].component = Layout;
          b[1].children[0].component= () => import('@/views/form/index')


          console.log('after....',b)


        //  accessRoutes[0].component = Layout;
          //accessRoutes[0].children[0].component= () => import('@/views/dashboard/index')
         // accessRoutes[1].component = Layout;
        //  accessRoutes[1].children[0].component= () => import('@/views/form/index')



          router.addRoutes(accessRoutes);

          // let item={}
          // item.component = () => import(`@/views/${item.url}`)


          // hack method to ensure that addRoutes is complete
          // set the replace: true, so the navigation will not leave a history record
          next({
            ...to,
            replace: true
          })
        } catch (error) {


          // remove token and go to login page to re-login
          await store.dispatch('user/resetToken')
          Message.error(error || 'Has Error')
          next(`/login?redirect=${to.path}`)
          NProgress.done()
        }
      }
    }
  } else {
    /* has no token*/
    if (whiteList.indexOf(to.path) !== -1) {
      // in the free login whitelist, go directly
      next()
    } else {

      // other pages that do not have permission to access are redirected to the login page.
      next(`/login?redirect=${to.path}`)
      NProgress.done()
    }
  }
})

router.afterEach(() => {
  // finish progress bar
  NProgress.done()
})
